Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -16*x+7*y=-5
- -2*x-1*y=-8
- -4*x-18*y=-14
- 1*x-4*y=1
- Equation:
-
Equation (7x+1)-(9x+3)=5
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Equation tg(x)=-1
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Equation (x+2)^2+(x-3)^2=2x^2
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Equation 9-7(x+3)=5-6x
- Sum of series:
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-8
- Limit of the function:
- -8
- Integral of d{x}:
-
-8
-
Identical expressions
- - two *x- one *y=- eight
- minus 2 multiply by x minus 1 multiply by y equally minus 8
- minus two multiply by x minus one multiply by y equally minus eight
- -2x-1y=-8
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Similar expressions
- -2*x+1*y=-8
- 2*x-1*y=-8
- -2*x-1*y=+8
Express x in terms of y where -2*x-1*y=-8
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Move the summands with the other variables
from left part to right part, we given:
$$- 2 x = y - 8$$
Divide both parts of the equation by -2
We get the answer: x = 4 - y/2
-2*x-1*y = -8
Looking for similar summands in the left part:
-y - 2*x = -8
Move the summands with the other variables
from left part to right part, we given:
$$- 2 x = y - 8$$
Divide both parts of the equation by -2
x = -8 + y / (-2)
We get the answer: x = 4 - y/2
Rapid solution
[src]
re(y) I*im(y)
x1 = 4 - ----- - -------
2 2
$$x_{1} = - \frac{\operatorname{re}{\left(y\right)}}{2} - \frac{i \operatorname{im}{\left(y\right)}}{2} + 4$$
x1 = -re(y)/2 - i*im(y)/2 + 4